Faulty Fan ?

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by munsey8, Mar 30, 2013.

  1. munsey8

    munsey8 Adventurer

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    Jun 15, 2012
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    Today my 2006 990 adv boiled up and steam was pouring out.

    Temp bar was max, boiled straight away and i switched it off straight away to.

    Got home left it running and the fan isn't kicking in.

    Is there an easy way to test the fan? e.g. taking it off and attaching it to a battery or something?
    #1
  2. GZERO

    GZERO Fixing stuff around

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    Panama, but originally from Venezuela

    Right side of the bike, in the radiator right next to the coolant overflow tank there is a rubber boot covering a 2 cable conector.
    Put back the rubber boot, disconect the conetor, then get a paper click and jump the two cables together and with the key as if the bike were running the fan should kick in.
    Also, did you check the fuse?
    #2
  3. 6732cash

    6732cash Been here awhile

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    Air lock
    #3
  4. munsey8

    munsey8 Adventurer

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    Cheers! Yea checked the fuse and also swapped it anyway. Fuse was good. I tried the paper clip test using a bit of cable and the fan is ok so must be a problem with the thermostat. Cheers for the help.
    #4
  5. geometrician

    geometrician let's keep going...

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    If your fan switch has gone bad consider replacing it with one of the lower temp-switching units from ADVMachines. It starts the cooling fan at 88C/190.4F instead of the stock 105C/221F.

    Coming on at a lower temp keeps the bike from "heat-soaking" where the fan looses its ability to shed all the BTU's being pumped through the radiator. Makes a huge difference, esp in traffic & slow (or sandy) offroad.
    #5
  6. munsey8

    munsey8 Adventurer

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    Cheers, going to get that lower temp thermostat on order.
    #6
  7. Steveman

    Steveman Been here awhile

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    What u need is the thermo switch not the thermostat, its the one where the two cables you shorted are connected to :1drink
    #7
  8. munsey8

    munsey8 Adventurer

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    Cheers for all the help. I did mean thermo switch for the fan rather than just the thermo lol!

    And turns out I think it was an air lock. After topping up the coolant and bleeding it properly the fan kicked in.

    Only had the bike a week, I'm glad the garage checked it over.
    #8
  9. 6732cash

    6732cash Been here awhile

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    Shame you didnt read the 3rd post
    #9
  10. munsey8

    munsey8 Adventurer

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    I did mate but I'm not very mechanically minded and I assumed the worst. I was just trying to get an idea of what the simplest problems could be to the more complicated lol.

    Cheers
    #10
  11. 6732cash

    6732cash Been here awhile

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    Always look for the cheap simple answer first.:D.....Enjoy the bike when the weather warms up
    #11